JPH06191848A - Titanium dioxide-mixed oxide, production thereof and method for production of catalyst, catalyst carrier, photocatalyst, ceramic, autolacquer and cosmetics - Google Patents
Titanium dioxide-mixed oxide, production thereof and method for production of catalyst, catalyst carrier, photocatalyst, ceramic, autolacquer and cosmeticsInfo
- Publication number
- JPH06191848A JPH06191848A JP5264899A JP26489993A JPH06191848A JP H06191848 A JPH06191848 A JP H06191848A JP 5264899 A JP5264899 A JP 5264899A JP 26489993 A JP26489993 A JP 26489993A JP H06191848 A JPH06191848 A JP H06191848A
- Authority
- JP
- Japan
- Prior art keywords
- mixed oxide
- tio
- titanium dioxide
- mixed
- production
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 13
- 239000000919 ceramic Substances 0.000 title claims abstract description 6
- 239000002537 cosmetic Substances 0.000 title claims abstract description 6
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 title claims description 10
- 239000010936 titanium Substances 0.000 title claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 10
- 230000007062 hydrolysis Effects 0.000 claims abstract description 9
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims abstract description 6
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 4
- 239000001257 hydrogen Substances 0.000 claims abstract description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 4
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 4
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 4
- 239000011261 inert gas Substances 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract description 3
- -1 autolacquer Substances 0.000 claims abstract 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000004408 titanium dioxide Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 4
- 239000012760 heat stabilizer Substances 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 3
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 claims description 2
- 239000000969 carrier Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000005049 silicon tetrachloride Substances 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract description 3
- 239000004945 silicone rubber Substances 0.000 abstract description 3
- 229910003074 TiCl4 Inorganic materials 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 229910003910 SiCl4 Inorganic materials 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 abstract 1
- 239000003017 thermal stabilizer Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910003902 SiCl 4 Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PHTHEUNUXVDUOD-UHFFFAOYSA-N aluminum oxygen(2-) titanium(4+) Chemical compound [O-2].[O-2].[Ti+4].[O-2].[Al+3] PHTHEUNUXVDUOD-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- TVUBDAUPRIFHFN-UHFFFAOYSA-N dioxosilane;oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4].O=[Si]=O TVUBDAUPRIFHFN-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/12—Silica and alumina
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
- B01J37/088—Decomposition of a metal salt
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/003—Titanates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/07—Producing by vapour phase processes, e.g. halide oxidation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
- C01P2006/13—Surface area thermal stability thereof at high temperatures
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Catalysts (AREA)
- Silicon Compounds (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Cosmetics (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は火炎加水分解により製造
した二酸化チタン−混合酸化物、その製法及び触媒、触
媒担体、光触媒、セラミック、オートラッカー、化粧品
及びシリコンゴム中の熱安定剤の製法に関する。FIELD OF THE INVENTION The present invention relates to a titanium dioxide mixed oxide prepared by flame hydrolysis, a process for its preparation and a process for preparing a catalyst, a catalyst carrier, a photocatalyst, a ceramic, an autolacquer, a cosmetic and a heat stabilizer in silicone rubber. .
【0002】[0002]
【従来の技術】二酸化チタン−混合酸化物をガス層中
で、加水分解法により製造することは公知である。こう
して、西独特許公開第952891号公報にはアルミニ
ウム及びチタン又はチタン及び珪素の混合酸化物の製法
が記載されており、そこでは分裂温度を250〜650
℃の範囲に保持する。It is known to produce titanium dioxide mixed oxides in the gas phase by a hydrolysis method. Thus, West German Patent Publication No. 952891 discloses a method for producing aluminum and titanium or a mixed oxide of titanium and silicon, in which the splitting temperature is 250 to 650.
Keep in the range of ° C.
【0003】西独特許公開第2931810号公報は火
炎加水分解法で製造された二酸化珪素−二酸化チタン−
混合酸化物を記載しており、これは二酸化珪素99.9
〜91.1重量%及び二酸化チタン0.1〜9.9重量
%を含有する。West German Patent Publication No. 2931810 discloses silicon dioxide-titanium dioxide produced by the flame hydrolysis method.
A mixed oxide is described, which is silicon dioxide 99.9.
.About.91.1% by weight and titanium dioxide 0.1 to 9.9% by weight.
【0004】西独特許公開第3611449号公報は火
炎加水分解により製造した酸化アルミニウム−二酸化チ
タン−混合酸化物を記載しており、これは酸化アルミニ
ウム56重量%および二酸化チタン44重量%を含有す
る。DE-A 3611449 describes an aluminum oxide-titanium dioxide mixed oxide prepared by flame hydrolysis, which contains 56% by weight aluminum oxide and 44% by weight titanium dioxide.
【0005】[0005]
【発明の構成】本発明の課題は火炎加水分解により製造
した、酸化アルミニウム1〜30重量%又は二酸化珪素
1〜30重量%を混合酸化物の成分として含有し、BE
T−表面積10〜150m2/gである二酸化チタン-混合
酸化物である。The object of the present invention is to contain 1 to 30% by weight of aluminum oxide or 1 to 30% by weight of silicon dioxide produced by flame hydrolysis as a component of a mixed oxide.
T-Titanium dioxide-mixed oxide with a surface area of 10 to 150 m 2 / g.
【0006】本発明の有利な実施形においては、二酸化
チタン−混合酸化物は次の物理化学的特性を有する: Al2O3−含量 1〜30重量% SiO2−含量 1〜30重量% 比表面積 10〜150m2/g 一次粒径 5〜100nm スタンピング密度 50〜400g/l 強熱減量(100℃で二時間) 0.5〜5重量% クロリド含量 <1重量% ルチル含量 20〜90% 本発明のもう一つの課題は、無水塩化アルミニウム又は
四塩化珪素を蒸発させ、不活性ガス、例えば窒素、と共
に公知バーナーの混合室中に導入し、そこで水素、空気
及びガス状四塩化チタンとを相応して構成されたAl2
O3/TiO2−混合酸化物又はSiO2/TiO2−混合
酸化物が生じるような比で混合し、この4−成分混合物
を反応室で燃焼させ、その後固体二酸化チタン−混合酸
化物をガス状反応生成物から分離し、場合により付着し
た塩化水素を湿った空気中で除去することを特徴とす
る、請求項1による火炎加水分解により製造した二酸化
チタン−混合酸化物の製法である。In a preferred embodiment of the invention, the titanium dioxide-mixed oxide has the following physicochemical properties: Al 2 O 3 -content 1-30% by weight SiO 2 -content 1-30% by weight. Surface area 10-150 m 2 / g Primary particle size 5-100 nm Stamping density 50-400 g / l Ignition loss (2 hours at 100 ° C.) 0.5-5% by weight Chloride content <1% by weight Rutile content 20-90% Another object of the invention is to evaporate anhydrous aluminum chloride or silicon tetrachloride and to introduce them together with an inert gas, for example nitrogen, into the mixing chamber of a known burner, in which hydrogen, air and gaseous titanium tetrachloride are commensurate. Composed of Al 2
Mixing in a ratio such that an O 3 / TiO 2 mixed oxide or a SiO 2 / TiO 2 mixed oxide results, the 4-component mixture is burned in the reaction chamber, after which the solid titanium dioxide mixed oxide is gasified. A process for producing a titanium dioxide-mixed oxide prepared by flame hydrolysis according to claim 1, characterized in that hydrogen chloride which has been separated off from the reaction product and which is optionally attached is removed in moist air.
【0007】本発明による火炎加水分解反応は1000
〜3000℃の温度で実施することが出来る。The flame hydrolysis reaction according to the present invention is 1000
It can be carried out at a temperature of up to 3000 ° C.
【0008】本発明の二酸化チタン−混合酸化物は触
媒、触媒担体、光触媒、セラミック、オートラッカー及
び化粧品(特に、日焼け止め中のUV−吸収剤として)
の製造のために、及びシリコンゴム中の熱安定化剤とし
て使用することが出来る。The titanium dioxide-mixed oxides according to the invention are used as catalysts, catalyst carriers, photocatalysts, ceramics, autolacquers and cosmetics (in particular as UV-absorbers in sunscreens).
Can be used as a heat stabilizer in silicone rubber and as a heat stabilizer.
【0009】本発明による二酸化チタン−混合酸化物は
有利に、表面の高い温度安定性を示す。この酸化物は微
細粒状で、非常に均一で、非常に純粋であり、かつ高い
分散性を有する。The titanium dioxide mixed oxides according to the invention advantageously exhibit a high temperature stability of the surface. The oxide is finely grained, very uniform, very pure and highly dispersible.
【0010】[0010]
【実施例】AlCl3及びTiCl4、又はSiCl4及
びTiCl4を分離した2つの蒸発装置で気化し(蒸発
装置の温度:AlCl3;250℃、SiCl4;100
℃、TiCl4;200℃)、かつこれらのクロリド蒸
気を窒素によりバーナーの混合室に導入する。そこで、
これらを水素及び乾燥空気及び/又は酸素と混合して、
反応室で燃焼する。凝集域中で反応生成物を約110℃
に冷却する。引き続き、この混合酸化物をフィルターで
分離する。この粉末を500〜700℃の温度で湿った
空気で処理することにより、付着するクロリドを除去す
る。EXAMPLE AlCl 3 and TiCl 4 or SiCl 4 and TiCl 4 are vaporized by two separate evaporators (evaporator temperature: AlCl 3 ; 250 ° C., SiCl 4 ; 100
℃, TiCl 4; 200 ℃) , and these chlorides steam introduced into the mixing chamber of the burner by nitrogen. Therefore,
Mix these with hydrogen and dry air and / or oxygen,
Burn in the reaction chamber. The reaction product is about 110 ° C in the coagulation zone.
Cool to. Subsequently, the mixed oxide is filtered off. The powder is treated with moist air at a temperature of 500 to 700 ° C. to remove the attached chloride.
【0011】種々の混合酸化物に関する反応条件及び生
成物の特性を第1表及び第2表中にまとめる。Reaction conditions and product properties for various mixed oxides are summarized in Tables 1 and 2.
【0012】[0012]
【表1】 [Table 1]
【0013】比表面積の温度安定性 例として、混合酸化物4(第1表参照)及び9(第2表
参照)の比表面積を500〜800℃の温度でか焼した
後に測定した。保持時間はそれぞれ4時間であった。比
較材料としては無添加パイロゼン・チタンオキシドP2
5(BET50m2/g)を使用した。結果を図1に示す。Temperature stability of specific surface area As an example, the specific surface areas of mixed oxides 4 (see Table 1) and 9 (see Table 2) were measured after calcination at a temperature of 500-800 ° C. The holding time was 4 hours each. Additive-free pyrogen-titanium oxide P2 as comparative material
5 (BET 50 m 2 / g) was used. The results are shown in Fig. 1.
【0014】− P25の比表面積は600℃から強く
落ちこむ。-The specific surface area of P25 drops strongly from 600 ° C.
【0015】− 酸化アルミニウムの添加は明らかによ
り安定な表面を有する材料を供給する(800℃:P2
5の12m2/gの代わりに30m2/g)。The addition of aluminum oxide provides a material with a clearly more stable surface (800 ° C .: P2
30m 2 / g instead of 5 12m 2 / g).
【0016】− 二酸化珪素の添加により、試験した温
度範囲全体にわたって表面積が安定である粉末が得られ
る。The addition of silicon dioxide results in a powder whose surface area is stable over the temperature range tested.
【0017】この新規材料は高い温度で使用することが
出来、こうして特に触媒及び触媒担体の製造に好適であ
る。The novel material can be used at high temperatures and is thus particularly suitable for the production of catalysts and catalyst supports.
【図面の簡単な説明】[Brief description of drawings]
【図1】保持時間4時間における、比表面積の温度安定
性を示す図である。FIG. 1 is a diagram showing temperature stability of specific surface area at a holding time of 4 hours.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 ディーター ケルナー ドイツ連邦共和国 ハーナウ アム ヘク センプファート 21 ─────────────────────────────────────────────────── ————————————————————————————————————————————————————————————————————————————————————————————————————– Hanau
Claims (3)
ミニウム1〜30重量%又は二酸化珪素1〜30重量%
を混合酸化物の成分として含有し、BET−表面積10
〜150m2/gである二酸化チタン-混合酸化物。1. 1-30% by weight of aluminum oxide or 1-30% by weight of silicon dioxide, produced by flame hydrolysis.
As a component of the mixed oxide, BET-surface area 10
Titanium dioxide-mixed oxide which is ~ 150 m 2 / g.
蒸発させ、不活性ガスと共に公知バーナーの混合室中に
導入し、そこで水素、空気及びガス状四塩化チタンとを
相応して構成されたAl2O3/TiO2−混合酸化物又
はSiO2/TiO2−混合酸化物が生じるような比で混
合し、この4−成分混合物を反応室中で燃焼させ、その
後固体二酸化チタン−混合酸化物をガス状反応生成物か
ら分離し、場合により付着した塩化水素を湿った空気中
で除去することを特徴とする、請求項1による火炎加水
分解により製造した二酸化チタン−混合酸化物の製法。2. Anhydrous aluminum chloride or silicon tetrachloride is evaporated and introduced together with an inert gas into the mixing chamber of a known burner, where hydrogen, air and gaseous titanium tetrachloride are correspondingly constituted by Al 2 Mixing in such a ratio that an O 3 / TiO 2 -mixed oxide or a SiO 2 / TiO 2 -mixed oxide results, the 4-component mixture is burned in the reaction chamber, after which the solid titanium dioxide-mixed oxide is mixed. Process for producing a titanium dioxide-mixed oxide prepared by flame hydrolysis according to claim 1, characterized in that hydrogen chloride separated from the gaseous reaction product and optionally adhering hydrogen chloride is removed in moist air.
物を使用することを特徴とする、触媒、触媒担体、光触
媒、セラミック、オートラッカー、化粧品及びシリコン
ゴム中の熱安定剤の製法。3. A process for the preparation of heat stabilizers in catalysts, catalyst carriers, photocatalysts, ceramics, autolacquers, cosmetics and silicone rubbers, characterized in that the titanium dioxide mixed oxide according to claim 1 is used.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4235996.1 | 1992-10-24 | ||
DE4235996A DE4235996A1 (en) | 1992-10-24 | 1992-10-24 | Titanium dioxide mixed oxide produced by flame hydrolysis, process for its preparation and use |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06191848A true JPH06191848A (en) | 1994-07-12 |
JP2503370B2 JP2503370B2 (en) | 1996-06-05 |
Family
ID=6471298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP5264899A Expired - Lifetime JP2503370B2 (en) | 1992-10-24 | 1993-10-22 | Titanium dioxide-mixed oxide and process for producing the same |
Country Status (4)
Country | Link |
---|---|
US (3) | US5451390A (en) |
EP (1) | EP0595078B1 (en) |
JP (1) | JP2503370B2 (en) |
DE (2) | DE4235996A1 (en) |
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DE4235996A1 (en) * | 1992-10-24 | 1994-04-28 | Degussa | Titanium dioxide mixed oxide produced by flame hydrolysis, process for its preparation and use |
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1992
- 1992-10-24 DE DE4235996A patent/DE4235996A1/en not_active Ceased
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1993
- 1993-10-06 DE DE59306172T patent/DE59306172D1/en not_active Expired - Lifetime
- 1993-10-06 EP EP93116133A patent/EP0595078B1/en not_active Expired - Lifetime
- 1993-10-22 US US08/139,708 patent/US5451390A/en not_active Expired - Lifetime
- 1993-10-22 JP JP5264899A patent/JP2503370B2/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
EP0595078A3 (en) | 1994-12-21 |
US5672330A (en) | 1997-09-30 |
US5451390A (en) | 1995-09-19 |
US5762914A (en) | 1998-06-09 |
EP0595078B1 (en) | 1997-04-16 |
DE4235996A1 (en) | 1994-04-28 |
EP0595078A2 (en) | 1994-05-04 |
DE59306172D1 (en) | 1997-05-22 |
JP2503370B2 (en) | 1996-06-05 |
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